a gray plastic dowel fastening for thermal insulation with round umbrella caps lies on a gray foam polystyrene plat

gray plastic dowel fastening thermal insulation round umbrella caps lies foam polystyrene plat plate wall white industry fixing construction styrofoam background home architecture house industrial repairs fortifications material outdoor part build facade fix color mortar dowelumbrella technology building preparing anchor installation saver fixtures panels equipment polyfoam object heat expanded spigot plug peg rubber diameter one